Linus, please pull from
master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband.git for-linus
This tree is also available from kernel.org mirrors at:
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband.git
for-linus
A few small fixes here and there:
Erez Zilber (1):
IB/iser: Return error code when PDUs may not be sent
Jack Morgenstein (1):
IB/mthca: Fix PRM compliance problem in atomic-send completions
Michael S. Tsirkin (1):
IB/mthca: Fix off-by-one in FMR handling on memfree
Sean Hefty (2):
RDMA/ucma: Fix struct ucma_event leak when backlog is full
RDMA/ucma: Don't report events with invalid user context
Steve Wise (1):
RDMA/iwcm: iWARP connection timeouts shouldn't be reported as rejects
drivers/infiniband/core/cma.c | 17 ++++++++++++++---
drivers/infiniband/core/ucma.c | 11 +++++++++++
drivers/infiniband/hw/mthca/mthca_cq.c | 8 ++++++--
drivers/infiniband/hw/mthca/mthca_memfree.c | 2 +-
drivers/infiniband/ulp/iser/iscsi_iser.c | 4 ++--
drivers/infiniband/ulp/iser/iser_initiator.c | 26 ++++++++++++--------------
6 files changed, 46 insertions(+), 22 deletions(-)
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index 533193d..9e0ab04 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1088,10 +1088,21 @@ static int cma_iw_handler(struct iw_cm_id *iw_id,
struct iw_cm_event *iw_event)
*sin = iw_event->local_addr;
sin = (struct sockaddr_in *) &id_priv->id.route.addr.dst_addr;
*sin = iw_event->remote_addr;
- if (iw_event->status)
- event.event = RDMA_CM_EVENT_REJECTED;
- else
+ switch (iw_event->status) {
+ case 0:
event.event = RDMA_CM_EVENT_ESTABLISHED;
+ break;
+ case -ECONNRESET:
+ case -ECONNREFUSED:
+ event.event = RDMA_CM_EVENT_REJECTED;
+ break;
+ case -ETIMEDOUT:
+ event.event = RDMA_CM_EVENT_UNREACHABLE;
+ break;
+ default:
+ event.event = RDMA_CM_EVENT_CONNECT_ERROR;
+ break;
+ }
break;
case IW_CM_EVENT_ESTABLISHED:
event.event = RDMA_CM_EVENT_ESTABLISHED;
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index 81a5cdc..e2e8d32 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -209,10 +209,21 @@ static int ucma_event_handler(struct rdma_cm_id *cm_id,
if (event->event == RDMA_CM_EVENT_CONNECT_REQUEST) {
if (!ctx->backlog) {
ret = -EDQUOT;
+ kfree(uevent);
goto out;
}
ctx->backlog--;
+ } else if (!ctx->uid) {
+ /*
+ * We ignore events for new connections until userspace has set
+ * their context. This can only happen if an error occurs on a
+ * new connection before the user accepts it. This is okay,
+ * since the accept will just fail later.
+ */
+ kfree(uevent);
+ goto out;
}
+
list_add_tail(&uevent->list, &ctx->file->event_list);
wake_up_interruptible(&ctx->file->poll_wait);
out:
diff --git a/drivers/infiniband/hw/mthca/mthca_cq.c
b/drivers/infiniband/hw/mthca/mthca_cq.c
index 283d50b..1159c8a 100644
--- a/drivers/infiniband/hw/mthca/mthca_cq.c
+++ b/drivers/infiniband/hw/mthca/mthca_cq.c
@@ -54,6 +54,10 @@ enum {
MTHCA_CQ_ENTRY_SIZE = 0x20
};
+enum {
+ MTHCA_ATOMIC_BYTE_LEN = 8
+};
+
/*
* Must be packed because start is 64 bits but only aligned to 32 bits.
*/
@@ -599,11 +603,11 @@ static inline int mthca_poll_one(struct mthca_dev *dev,
break;
case MTHCA_OPCODE_ATOMIC_CS:
entry->opcode = IB_WC_COMP_SWAP;
- entry->byte_len = be32_to_cpu(cqe->byte_cnt);
+ entry->byte_len = MTHCA_ATOMIC_BYTE_LEN;
break;
case MTHCA_OPCODE_ATOMIC_FA:
entry->opcode = IB_WC_FETCH_ADD;
- entry->byte_len = be32_to_cpu(cqe->byte_cnt);
+ entry->byte_len = MTHCA_ATOMIC_BYTE_LEN;
break;
case MTHCA_OPCODE_BIND_MW:
entry->opcode = IB_WC_BIND_MW;
diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c
b/drivers/infiniband/hw/mthca/mthca_memfree.c
index 15cc2f6..6b19645 100644
--- a/drivers/infiniband/hw/mthca/mthca_memfree.c
+++ b/drivers/infiniband/hw/mthca/mthca_memfree.c
@@ -232,7 +232,7 @@ void *mthca_table_find(struct mthca_icm_table *table, int
obj)
list_for_each_entry(chunk, &icm->chunk_list, list) {
for (i = 0; i < chunk->npages; ++i) {
- if (chunk->mem[i].length >= offset) {
+ if (chunk->mem[i].length > offset) {
page = chunk->mem[i].page;
goto out;
}
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c
b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 9b2041e..dd221ed 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -177,7 +177,7 @@ iscsi_iser_mtask_xmit(struct iscsi_conn *conn,
* - if yes, the mtask is recycled at iscsi_complete_pdu
* - if no, the mtask is recycled at iser_snd_completion
*/
- if (error && error != -EAGAIN)
+ if (error && error != -ENOBUFS)
iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
return error;
@@ -241,7 +241,7 @@ iscsi_iser_ctask_xmit(struct iscsi_conn *conn,
error = iscsi_iser_ctask_xmit_unsol_data(conn, ctask);
iscsi_iser_ctask_xmit_exit:
- if (error && error != -EAGAIN)
+ if (error && error != -ENOBUFS)
iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
return error;
}
diff --git a/drivers/infiniband/ulp/iser/iser_initiator.c
b/drivers/infiniband/ulp/iser/iser_initiator.c
index e73c87b..0a7d1ab 100644
--- a/drivers/infiniband/ulp/iser/iser_initiator.c
+++ b/drivers/infiniband/ulp/iser/iser_initiator.c
@@ -304,18 +304,14 @@ int iser_conn_set_full_featured_mode(struct iscsi_conn
*conn)
static int
iser_check_xmit(struct iscsi_conn *conn, void *task)
{
- int rc = 0;
struct iscsi_iser_conn *iser_conn = conn->dd_data;
- write_lock_bh(conn->recv_lock);
if (atomic_read(&iser_conn->ib_conn->post_send_buf_count) ==
ISER_QP_MAX_REQ_DTOS) {
- iser_dbg("%ld can't xmit task %p, suspending
tx\n",jiffies,task);
- set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
- rc = -EAGAIN;
+ iser_dbg("%ld can't xmit task %p\n",jiffies,task);
+ return -ENOBUFS;
}
- write_unlock_bh(conn->recv_lock);
- return rc;
+ return 0;
}
@@ -340,7 +336,7 @@ int iser_send_command(struct iscsi_conn *conn,
return -EPERM;
}
if (iser_check_xmit(conn, ctask))
- return -EAGAIN;
+ return -ENOBUFS;
edtl = ntohl(hdr->data_length);
@@ -426,7 +422,7 @@ int iser_send_data_out(struct iscsi_conn *conn,
}
if (iser_check_xmit(conn, ctask))
- return -EAGAIN;
+ return -ENOBUFS;
itt = ntohl(hdr->itt);
data_seg_len = ntoh24(hdr->dlength);
@@ -498,7 +494,7 @@ int iser_send_control(struct iscsi_conn *conn,
}
if (iser_check_xmit(conn,mtask))
- return -EAGAIN;
+ return -ENOBUFS;
/* build the tx desc regd header and add it to the tx desc dto */
mdesc->type = ISCSI_TX_CONTROL;
@@ -605,6 +601,7 @@ void iser_snd_completion(struct iser_desc *tx_desc)
struct iscsi_iser_conn *iser_conn = ib_conn->iser_conn;
struct iscsi_conn *conn = iser_conn->iscsi_conn;
struct iscsi_mgmt_task *mtask;
+ int resume_tx = 0;
iser_dbg("Initiator, Data sent dto=0x%p\n", dto);
@@ -613,15 +610,16 @@ void iser_snd_completion(struct iser_desc *tx_desc)
if (tx_desc->type == ISCSI_TX_DATAOUT)
kmem_cache_free(ig.desc_cache, tx_desc);
+ if (atomic_read(&iser_conn->ib_conn->post_send_buf_count) ==
+ ISER_QP_MAX_REQ_DTOS)
+ resume_tx = 1;
+
atomic_dec(&ib_conn->post_send_buf_count);
- write_lock(conn->recv_lock);
- if (conn->suspend_tx) {
+ if (resume_tx) {
iser_dbg("%ld resuming tx\n",jiffies);
- clear_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
scsi_queue_work(conn->session->host, &conn->xmitwork);
}
- write_unlock(conn->recv_lock);
if (tx_desc->type == ISCSI_TX_CONTROL) {
/* this arithmetic is legal by libiscsi dd_data allocation */
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